Crushing and pulverizing machine.



I. E. KENNEDY.

CRUSHING AND PULVERIZING MACHINE.

APPLICATION FILED FEB. 2 I9I4.

Patented June 15, 1915.

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June 12th, 1912,

JOSEPH E. KENNEDY,

on new nenn, n. v.

CEUSHXNG AND PULVERIZING MACHINE.

attacca To all 'whom z't may concern Be it known that ll, JOSEPH E. KENNEDY, a citizen of the United States, and a resident' of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Crushing and Pulverizing Machines, of which the following is a speciiication.

My invention relates to the type of crushing and pulverizing mechanism in which a gyratory shaft is journaled at its lower extremity in an eccentric bearing seated in a rotatable sleeve, as set forth in my concurrent application Serial No. 703,178 iiled patented Nov. 3d, 1914, No. 1,115,833, in which l insure the rotation o't theeccentric bearing with the sleeve in which it is seated by means which allow the eccentric bearing to adapt itself to the inclination of the gyratory shat,-the object being tofobviate as far as possible wear be tween the contacting surfaces of the interlocking parts by which the eccentric bearing and rotatable sleeve are so gether, as hereinafter fully set forth. IThis is eected by means of a coupling pin mounted on one of said parts and formed with an elongate head protruding into .a longitudinal recess in the other part,-said head having an extensive bearing surface which obviates the danger of its seating itself in the side wall of the recess. ln said concurrent application the coupling pin and its head are integral and the pin is loosely seated in its part so as to admit of its turning therein to allow the eccentric to adapt itself to the inclination of the shaft. In the present case the rectangular head of the coupling pin is loose thereon to admit of and compensate for the movement of the eccentric bearing within its seat in the rotatable sleeve, and prevent the head from wearing itself into the side of the recess against which it bears,.-the frictional resistance between the contacting surfaces be-V ing thus reduced to the minimum by the ease with which the loose head of the couplingr bolt responds to any variation in inclination between the eccentric bearing and driving sleeve.

VvOne advantage of -my present construction of loose-head on the coupling pin over the loose-pin described yand claimed in my Letters Patent No. 1,115,833, herein'betore referred 'to,'lis that the creepingof the lining Specification o' Letters Patent.

gyratory shaft S,

Patented June 15, i915..

.application inea February a, 191e. serial no. 815,929.

of the eccentric bearing, or of the eccentric bearing itself with relation to said linin when used, tends to pinch and hold the coupling pin and its head rigidly thereby increasing frictional strain and wear, whereas in the present case the head is free to turn under all conditions of use whether the pin be held rigid or not.

By mounting the coupling pin head loosely on the coupling pin the latter may be mademuch smaller in diameter and be driven in tightly to form a permanent integral part of that to which it is thus attached, while the head mr7 be reversed (as only one side bears against the opposed side of the recess in ordinary use), or removed entirely and another substituted when desirable, without disturbing the coupling pin. Furthermore the wear of the pin on the inner surface or bore of the head does not adect the utility of the latters bearing contact with the side of the recess; and finally, the wear of the pin on the part in which it is inserted is obviated by this my present construction and arrangement of parts.

In the accompanying drawings, Figure 1, is a central vertical sectional elevation of the lower portion of a gyratory crusherof the type to which my invention is applicable. Fig. 2, is a horizontal section taken upon plane of line 2-2 Fig. l; Fig. 3, shows the several details of the coupling pin and slot upon a larger scale; Fig. 4, shows an alternative or modified construction of interlocking parts.

ln general construction and operation the apparatus is essentially the same as heretofore known and used, A, representing the gyratory shaft upon the upper part of which the usual truncated conical Crusher head is supported in an oppositely inclined conical crushing chamber.

The lower portion ofthe gyratory shaft A, is journaled in the bore b, of the eccentric bearing B, which is formed with a con- Vex peripheral surface h', seated in a corresponding concavity a, in the rotatable sleeve S, to which the driving gear d, is secured,said driving gear d, being rotated by the pinion p, on thepower shaft P.

'n order to insure the rotation o1 the eccentric bearing B, with the sleeve S, and at lthe same time allow it to conform to the longitudinal axis of the inclination of the it is necessary to couple 'lli vtiti the eccentric bearing B, and the sleeve S, together' by means which will allow the convex peripheral surface b', of the eccentric bearing B, to rock vertically on the concave seat a, of the sleeve S, and in order to accomplish this in a simple and ed'ective manner I provide on one part a coupling pin c, the protruding elongated rectangular head c', of which engages with a side Wall of a longitudinal recess r, in the other part.

By preference I form the longitudinal recess 7, in the sleeve S, opening into the concave seat s, and drive the shank of the pin c, into a socket b2, formed for its reception in the eccentric bearing B, as shown 'in Figs. l, 2- and 3 of the accompanying drawings, although it is obvious that the alternative arrangement may be resorted to without departing from the spirit and intent of my invention in this respect. That is to say as an equivalent VYmechanical expedient thelongitudin'al recess r, may be formed in the eccentric bearing B, and 'the coupling pin c, be attached in the sleeve if desired with like result as shown in Fig. 4. The important feature in this connection is the formation of the coupling pin c, with a loose preferably elongate rectangular head, c', aiording an extensive bearing surface for contact with a side of the longitudinal slot, thereby equalizing 4and distributing the wear, and lengthening the life and utility of the bearing.vr ln other Words l counteract the tendency of the head' of the coupling pin to augment rictional resistance or possibly even eventually render the ball and s ocket joint inoperative, by wearing a seat for itself in the opposed wall surface of the longitudinal coupling slot.

ln my concurrent application hereinbefore referred to the body or shank of the coupling pin is seated loosely, for instance, in a socket b2 in the eccentric bearing B, and bears the brunt of the twist motion, which necessitates making the pin c, and its socket b2, of large diameter, whereas by making the head c', loose as in the present case l am enabled to use a pin of comparatively small diameter and vdrive it permanently into the eccentric bearing B, to form an integral part thereof thereby relieving the latter of pin wear which is all transferred to the loose head c', made of suitable size and shape to sustain frictional contact with the side of the recess r, in the sleeve, Without wearing a seat for itself therein.

It the loose head c', is made of elongated rectangular form it is obvious that the elongated parallel sides will each form a possible bearing surface for contacting with the side wall of the recess r, so that by reversing the head when one side is Worn, double service may be had; and it is also obvious that by making the head c', square and of proper dimensions, with a recess of aisance corresponding width, the wear lmay be quadrupled. And in any event a new head c', may always be substituted for an old one without extracting or disturbing the pin c.

What l claim as my invention and desire to secure by Letters Patent is,

l. In crushing mechanism of the character designated, thecombination of a gyratory shaft, means for supporting the same, an eccentric bearing for the lower portion of said shaft rotative about said shaft to cause its gyratory movement, said eccentric bearing having a convex peripheral surface, a rotatable sleeve formed with a concavity in which the eccentric bearing is seated, said sleeve being also formed with a longitudinal recess in said concave seat, a coupling pin fitting in a socket formed for its reception in said eccentric bearing, said pin being formed with a loose head protruding into the longitudinal recess inthe sleeve and having an extensive bearing surface contacting with a side thereof, whereby the positive rotation of the eccentric bearing with the sleeve is insured while permitting the bearing to adapt itself axiallyv to the inclination of the shaft, and means for rotating said sleeve.

2. ln crushing mechanism of the character desi ated, the combination of a gyratory sha means for supporting the same, an eccentric bearing for the lower portion ot said shaft rotative about said shaft to cause its gyratory movement, said eccentric bearing having a convex peripheral surface, a rotatable sleeve formed with a. concavity in which the eccentric bearing is seated and also formed with a longitudinal recess in said concave seat, said recess having an elongate flat surface parallel to the longitudinal axis of the eccentric bearing, a coupling -pin fitting in a socket formed for its reception in said eccentric bearing, said pin being formed with a loose head protruding into said longitudinal recess in the sleeve and having an extensive flat bearing surface for contacting with the bearing surface of the longitudinal recess in the sleeve, whereby theeccentric bearing is permitted to adapt itself axially to the inclination of the shaft while rotating positively with the sleeve, and means for rotating said sleeve.

3. In crushing mechanism of the character designated, the combination of a gyratory shaft, means for supporting the same, an eccentric bearing for the lower portion of said shaft rotative about said shaft to cause its gyratory movement, said eccentric bearing havin a convex peripheral surface, a rotatable s eeve formed with a concavity in which the eccentric bearing is seated, and means for coupling said eccentric bearing and said sleeve together in such manner that they will rotate together while admitting the eccentric bearing to adapt itself to the axial inclination of the gyratory shaft, said means consisting et a coupling pin mounted on one part and toed with a loose head protruding into a longitudinal recess in the other lpart and having an extensive bearing surface contacting `with the longitudinal bearing surface of the recess.

d. ln crushing mechanism of the character desated the combination of a gyratory sha means for supporting the same, an eccentric bearing for the lower portion oi said shaft rotative about said shaft to cause its gyratory movement, said eccentric bearing consisting of a plurality of members, one member having a convex peripheral surface,

'another of sald members being a rotatable eccentric sleeve formed With a concavity in which said rst named member is seated, and also formed with a longitudinal recess in said concave seat, a coupling pin in a socket formed for its receptlon in said first named member, said pin being formed with a loose head protruding into the longitudinal recess in the sleeve, said loose head having a bearing surface contacting with the side thereof whereby the positive rotation of the first named member with the sleeve is insured while permitting the bearing te adat itself'axially to the inclination of the Sha and means for rotatin a i sleeve.

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5. in crushing mechanim oi the character designated, the combination oi" a gvratory shaft, means for supporting the same, an eccentric bearing tor the lower portion of said shaft rotative about said shaft to canse its Wyratory movement and in which said shait is movable longitudinally, said eccentric bearing eonsistlng` of a plurality of members. one member having a convex peripheral surface, another of said members belng a rotatable eccentric sleeve formed with a concavity in which said first named member is seated, and means for coupling said first named member and said sleeve together in such manner that they Will rotate together While attina7 the rst named member to adapt itself to the axial inclination of the gyratory shaft, Said means consisting of a coupling pin mounted on one member and formed vvlth a loose head protruding into a longitudinal recess in the other member and having an extensive bearinn surface contacting with the longitudinal bearing surface of the recess.

Gro. WM; Murr, Donor Mmrr. 

